Biology

Treecko is a small, green, bipedal reptilian Pokémon. It has yellow eyes with long, narrow pupils. Treecko's hands and feet each have three digits covered with tiny spikes. These spikes allow it to scale vertical walls with ease. Its stomach and throat are red. It also has a line across on its stomach resembling a pouch. Treecko has a large, dark green tail with two separate lobes that it uses to sense humidity. This ability allows it to predict the next day's weather.

Treecko is a bit of a rarity in the wild, and is more common in captivity. However, when in the wild, Treecko lives inside overgrown forests. It makes its home in tall trees, and will attack anyone that comes near its nest. Because of its territorial nature, it is known to be the protector of the forest's trees. Treecko is known for its calm and collected personality. It will never panic under any circumstances, even when faced with a bigger foe.

Other

In Having a Wailord of a Time, a Nurse Joy was taking care of a female Treecko, Torchic and Mudkip that a little girl named Stephanie was going to choose between as her first Pokémon. Stephanie chose Mudkip, and Stephanie's dad decided to become a Pokémon Trainer with the Treecko as his first Pokémon.

Pokédex entries

Treecko, the Wood Gecko Pokémon. Treecko are able to climb smooth vertical walls and use their thick tail to attack opponents. Since Treecko build their nests in large trees it is said that those trees will live a very long life.

This concludes the entries from the Advanced Generation series.

In the manga

Treecko in Pokémon Adventures

In the Pokémon Adventures manga

Treecko was the only starter Pokémon of Hoenn that was not recruited into a protagonist's team at the beginning of the Ruby & Sapphire chapter, instead being passed in favor of Mudkip because it looked ugly to the beauty-obsessed Ruby. When it was finally destined to meet its partner, the huge rainstorms caused by Kyogre sent it and the final Hoenn Pokédex drifting away, and after it had finally been recovered by Wally and evolved, it was sent flying away and was lost again, even after the Pokédex was returned. Evolving again into a Sceptile, it was this time caught in the wild by Guile Hideout and stolen by its proper owner, Emerald.

In the TCG

In the TFG

Other appearances

"A Wood Gecko Pokémon. It's a calm and cool creature that is not easily upset. It's also bold enough to stare down Pokémon larger than itself. It makes its home in large trees in forests, and its habit of fiercely defending its territory has some people calling it the "protector of the forest." It uses its thick tail to attack. When it levels up, it evolves into Grovyle."